Soul Zodiac is the first collaborative studio album by the Nat Adderley Sextet and Rick Holmes, presented by Julian "Cannonball" Adderley.

Recording sessions took place at Independent Recording Studios in Studio City, Los Angeles, California with production handled by David Axelrod and Cannonball Adderley.

The album features narration from Rick Holmes on all tracks and contributions from the sextet: Nat Adderley on cornet, George Duke on Fender Rhodes electric piano, Walter Booker on string bass and guitar, Roy McCurdy on drums, Mike Deasy on guitar, and Ernie Watts on flute, tenor saxophone, and tambourine, with guest appearance by Cannonball Adderley on two songs.

Because of the prominent production credit on the cover, the album is often mistakenly credited to Cannonball Adderley.

Also, Soul Zodiac is not to be confused with Cannonball Adderley's Love, Sex, and the Zodiac.